(19)

(11)

EP 4 373 592 A1

(12)

(43) Date of publication: 29.05.2024 Bulletin 2024/22 (21) Application number: 22743845.4 (22) Date of filing: 22.07.2022

(51) International Patent Classification (IPC):  A63C 11/22(2006.01) D02G 3/04(2006.01) D01G 19/00(2006.01) D02G 3/44(2006.01) A63C 5/12(2006.01) B29C 70/10(2006.01) D02G 3/40(2006.01) D02G 3/38(2006.01) (52) Cooperative Patent Classification (CPC): A63C 11/22; A63C 5/12; D02G 3/04; D01G 19/00; D02G 3/402; D02G 3/444; D10B 2505/02; D02G 3/38; B29C 70/16; B29C 70/02 (86) International application number: PCT/EP2022/070691 (87) International publication number: WO 2023/002043 (26.01.2023 Gazette 2023/04)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 23.07.2021 FR 2107994 (71) Applicant: PDA Ecolab 38240 Meylan (FR)	(72) Inventor: JOHNSON, Lance 38240 MEYLAN (FR) (74) Representative: Cabinet Beaumont  4, Place Robert Schuman B.P. 1529 38025 Grenoble Cedex 1 38025 Grenoble Cedex 1 (FR)